Yamaha MG124CX Owner's Manual - Page 12

Reference Front & Rear Panels The following applies to both the MG124CX and MG124C. In cases where different features need to be described for each model, the MG124CX feature will be described first, followed by the MG124C feature in brackets: MG124CX (MG124C). Channel Control Section Channels 1 to 4 (Monaural) Channels 5/6 and 7/8 (Stereo) Channels 9/10 and 11/12 (Stereo) 1 1 4 2 3 3 5 6 6 7 7 8 9 9 0 0 0 A B C D E ON F G H A A B B C C D D E ON F G H E ON F G H I I I MG124CX 1 MIC Input Jacks (CHs 1 to 4, 5/6, 7/8) These are balanced XLR-type microphone input jacks (1:Ground; 2:Hot; 3:Cold). 2 LINE Input Jacks (CHs 1 to 4) These are balanced TRS phone-jack line inputs (T:Hot; R:Cold; S:Ground). You can connect either balanced or unbalanced phone plugs to these jacks. 3 LINE Input Jacks (CHs 5/6 to 11/12) These are unbalanced phone-jack stereo line inputs. 4 LINE Input Jacks (CHs 9/10, 11/12) These are unbalanced stereo RCA pin jacks. NOTE Where an input channel provides both a MIC input jack and a LINE input jack, or a LINE input jack and an RCA pin jack, you can use either jack but not both at the same time. Please connect to only one jack on each channel. 5 INSERT Jacks (CHs 1 to 4) Each of these jacks provides an insert point between the equalizer and fader of the corresponding input channel (CHs 1 to 4). The INSERT jacks can be used to independently connect devices such as graphic equalizers, compressors, or noise filters into the corresponding channels. These are TRS (tip, ring, sleeve) phone jacks that carry both the send and return signal (tip = send/out; ring = return/in; sleeve = ground). NOTE Patching external devices via an INSERT jack requires a special insert cable such as illustrated below (insert cable sold separately). To the input jack of the external processor To the INSERT I/O jack Tip: OUT SSleleeevvee(G(Grorouunndd)) Ring: IN Tip: OUT Tip: IN To the output jack of the external processor CAUTION The signal output from the INSERT jacks is reverse-phased. This should not be a problem when connecting to an effect unit, but please be aware of the possibility of phase conflict when connecting to other types of device. 6 GAIN Control Adjusts the input signal level. To achieve the best balance between S/N ratio and dynamic range, adjust the level so that the PEAK indicator 9 lights only occasionally and briefly on the highest input transients. The -60 to -16 scale is the MIC input adjustment range. The -34 to +10 scale is the LINE input adjustment range. 12 MG124CX/MG124C Owner's Manual